./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:21:19,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:21:19,877 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:21:19,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:21:19,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:21:19,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:21:19,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:21:19,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:21:19,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:21:19,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:21:19,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:21:19,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:21:19,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:21:19,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:21:19,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:21:19,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:21:19,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:21:19,945 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:21:19,946 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:21:19,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:21:19,947 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:21:19,949 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:21:19,949 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:21:19,950 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:21:19,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:21:19,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:21:19,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:21:19,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:21:19,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:21:19,953 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:21:19,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:21:19,956 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:21:19,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 [2023-11-23 20:21:20,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:21:20,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:21:20,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:21:20,371 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:21:20,372 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:21:20,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2023-11-23 20:21:23,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:21:24,011 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:21:24,012 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2023-11-23 20:21:24,021 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/data/5c1de5055/373fa6fecd3340008de5e7c03a721de6/FLAG607868e1a [2023-11-23 20:21:24,040 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/data/5c1de5055/373fa6fecd3340008de5e7c03a721de6 [2023-11-23 20:21:24,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:21:24,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:21:24,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:21:24,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:21:24,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:21:24,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288bcadd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24, skipping insertion in model container [2023-11-23 20:21:24,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,086 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:21:24,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:21:24,275 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:21:24,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:21:24,306 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:21:24,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24 WrapperNode [2023-11-23 20:21:24,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:21:24,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:21:24,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:21:24,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:21:24,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,341 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-11-23 20:21:24,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:21:24,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:21:24,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:21:24,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:21:24,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,357 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,362 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,363 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:21:24,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:21:24,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:21:24,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:21:24,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:21:24,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:21:24,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:21:24,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:21:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:21:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:21:24,563 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:21:24,567 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:21:24,702 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:21:24,744 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:21:24,745 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:21:24,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:24 BoogieIcfgContainer [2023-11-23 20:21:24,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:21:24,748 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:21:24,749 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:21:24,763 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:21:24,763 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:24" (1/1) ... [2023-11-23 20:21:24,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:21:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:24,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-23 20:21:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-23 20:21:24,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:21:24,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:21:24,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:21:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:21:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:21:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:25,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2023-11-23 20:21:25,258 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-11-23 20:21:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:21:25,258 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:21:25,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:21:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:21:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:21:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:25,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-11-23 20:21:25,454 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-11-23 20:21:25,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:21:25,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:21:25,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:21:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:21:25,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:21:25,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-23 20:21:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-23 20:21:25,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:21:25,596 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2023-11-23 20:21:25,606 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-23 20:21:25,635 INFO L560 CodeCheckObserver]: Invariant with dag size 12 [2023-11-23 20:21:25,648 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:21:25,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:21:25 ImpRootNode [2023-11-23 20:21:25,648 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:21:25,649 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:21:25,650 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:21:25,650 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:21:25,650 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:24" (3/4) ... [2023-11-23 20:21:25,653 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:21:25,661 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-23 20:21:25,661 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 20:21:25,661 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 20:21:25,752 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:21:25,752 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:21:25,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:21:25,754 INFO L158 Benchmark]: Toolchain (without parser) took 1708.34ms. Allocated memory is still 176.2MB. Free memory was 128.5MB in the beginning and 80.0MB in the end (delta: 48.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-23 20:21:25,754 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 176.2MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:21:25,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.50ms. Allocated memory is still 176.2MB. Free memory was 128.3MB in the beginning and 119.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:21:25,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.35ms. Allocated memory is still 176.2MB. Free memory was 119.0MB in the beginning and 117.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:25,760 INFO L158 Benchmark]: Boogie Preprocessor took 23.20ms. Allocated memory is still 176.2MB. Free memory was 117.7MB in the beginning and 116.7MB in the end (delta: 996.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:21:25,761 INFO L158 Benchmark]: RCFGBuilder took 380.84ms. Allocated memory is still 176.2MB. Free memory was 116.7MB in the beginning and 107.5MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:21:25,762 INFO L158 Benchmark]: CodeCheck took 900.27ms. Allocated memory is still 176.2MB. Free memory was 107.3MB in the beginning and 84.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:25,763 INFO L158 Benchmark]: Witness Printer took 103.34ms. Allocated memory is still 176.2MB. Free memory was 84.0MB in the beginning and 80.0MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:21:25,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 6 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (((x <= 2147483647) && (1 <= x)) || ((x < 1) && (0 <= (x + 1)))) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 176.2MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.50ms. Allocated memory is still 176.2MB. Free memory was 128.3MB in the beginning and 119.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.35ms. Allocated memory is still 176.2MB. Free memory was 119.0MB in the beginning and 117.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.20ms. Allocated memory is still 176.2MB. Free memory was 117.7MB in the beginning and 116.7MB in the end (delta: 996.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 380.84ms. Allocated memory is still 176.2MB. Free memory was 116.7MB in the beginning and 107.5MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 900.27ms. Allocated memory is still 176.2MB. Free memory was 107.3MB in the beginning and 84.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 103.34ms. Allocated memory is still 176.2MB. Free memory was 84.0MB in the beginning and 80.0MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:21:25,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f9d772-99fb-4b2f-a9a0-ec0de2d7b6c4/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE